Score stopped following playback

[dspreadbury]

This was discussed not long ago – I suspect the same issue.

Green Cursor is not visible on playback

Today using Dorico Pro 3.5 I am finding that when I run the playback the green cursor is not appearing. Assuming that I have inadvertently tweaked something I have spent some considerable time trying to find out what I might have done wrong. I cannot find anything. {I am running on a 2021 MacBook Pro, displaying my score in Write mode page view - the cursor does show in gallery view} I have been using playback for months without problems. This challenge has got me flummoxed. Any ideas?